After attending the July meetings and listening/reading the presentations,
I have some questions I would like to get answered.
Hopefully some of the presenters or others can help me out.
WIS (Norival Figueira?)
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- What is the relationship of the 66b data into the Sonet SPE Payload?
- Which 66b bit is transmitted first in the Sonet Frame?
- Is there any 66b alignment at the beginning of the SPE Payload
or is it necessary to do 66b frame detection?
- What is the min IPG transmitted in the SPE payload in order to meet open loop rate control: 0-3
IPG?
XAUI Retiming (Rich Taborek?)
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- If XGMII IPG transmit is 12 average and XGMII IPG receive is 4 min,
where is it legal to remove IPG?
- If /R is removed for retiming, can the 12 average IPG be violated then?
SUPI (Paul Bottorff?)
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- Is each lane Sonet scrambled separately into an OC48-like channel?
- What happens to B1,B3 generation/checking?
- Is BIP calculated for each lane?
- Is BIP calculated for the concatenated frame and ends up on lane 0.
- Since each lane is not a real OC48 channel, I assume that no modification
can happen to the overhead between SUPI PMDs.
Thanks,
Brian Cruikshank